Monday, April 27, 2015

1942 Photo of a Fertilizer Test Plot

Tennessee Valley Authority: “Results of Fertilizer — This is a test field of a practical operating farm on which TVA-produced phosphate has demonstrated its ability to encourage the growth of a protective vegetable cover and hence build up soil fertility. The thick growth was treated with a mixture of phosphate and lime; the almost bare area was not treated. Source: Franklin D. Roosevelt Presidential Library and Museum.